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Questions tagged [bitrate]

Bitrate refers to the amount of information transferred or processed per unit of time, usually expressed in bits per second (bit/s) or multiples thereof. Bitrate can be used to express a number of things, such as the bandwidth of a computer interface, the level of quality of a digital audio or video stream, or the speed of file transfers.

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Does total network traffic being higher than the bit rate of a device's ethernet controller affect the controller?

I am using a Wago 750 ethernet controller on a local network that is at its peak hitting ~38,000,000 bits / second as per Wireshark. The Wago is becoming semi-unresponsive around the time of this ...
kep's user avatar
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4 votes
1 answer
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Does this video bitrate calculation make sense?

For the purpose of this question, I downloaded the video at: https://imgur.com/gallery/ypkZjqm It downloaded as "3Uyndrm.mp4", 4,762 kB In Windows 11, I used File Explorer > Details to ...
NewSites's user avatar
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Specifying audio bitrate of MP3 does not work as expected

I converted bitrate of audio file using ffmpeg which I built by myself. But option -b:a 32k will create actually 96kbps file. Are there any precautions when building? I built ffmpeg with the next ...
Yamamoto Toshifumi's user avatar
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0 answers
39 views

FFMPEG DTS Max Bitrate

Recently having problems with the DTS part of FFMPEG. When defining a bitrate higher than 1536kb/s, the end result reverts to 640kb/s. Using 1536kb/s or lower seems to have no problems. Is this normal ...
Pete's user avatar
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0 votes
2 answers
198 views

10G Fiber internet in, 15 Cat6a ports out -- do I need a 10G 16 port switch?

I have 10G fiber internet through Sonic as an ISP coming into my home. I recently wired the home and garage to have 15 CAT6a lines going to a central location where my fiber ONT is wired. I already ...
Fleep's user avatar
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0 answers
481 views

Need to find the bitrate of video stream but ffprobe exits earlier with error unsupported codec before reaching to video stream

We are seeing an issue while finding the HLS videostream bit rate with ffprobe. The stream has some timed metadata and when we run ffprobe with HLS input, error occurs: Unsupported codec with id 98313 ...
Namita Garg's user avatar
0 votes
0 answers
330 views

Trying to set bitrate of HLS Format segments in ffmpeg

I've tried to set bitrate when converting mp4 into HLS Format in FFMPEG but it doesn't seem to work. ffmpeg -y -i myvideo.mp4 -codec copy -bsf:v h264_mp4toannexb -map 0 -f segment -hls_segment_size ...
unsquaredcoder1's user avatar
-1 votes
1 answer
877 views

Converting several files in a folder with ffmpeg rather than just one at a time

My MP3 collection is by default saved at a bit-rate of 32k. I like to shrink them down as far as I can before loading on to my “daily driver” MP3-Player. I found and tweaked what is below with ...
Gene Tyle's user avatar
1 vote
0 answers
585 views

Why does the video file (x264) made with ffmpeg have a much higher bitrate compared to when I reencode it using the same settings in Handbrake?

I'm a ffmpeg beginner and am converting a series of .png images taken every 10s into a timelapse video. The images are named pic1.png, pic2.png, etc. For this I'm using the following ffmpeg command: ...
Istria's user avatar
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Why is ffprobe showing N/A for bitrate?

I am transcoding a video from VP9/opus webm to H.264/aac mp4. I'd like to maintain bitrate or reduce bitrate if either the audio bitrate > 128k or the file becomes larger than 5MB. So I try to ...
Maarten's user avatar
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0 votes
1 answer
901 views

FFMPEG - Display per frame information for an AV1 encoded video

So I am trying to view per frame information for an AV1 encoded video using ffplay with the following command: ffprobe -show_entries frame=pict_type,pkt_size,pkt_pts_time -select_streams v -of csv=p=0 ...
User1999's user avatar
0 votes
0 answers
985 views

Bitrate over Codec for the best quality?

AFAIK bitrate means how many bits are used to record the audio/video within one second, while codec (or file format) means the compression method to store the clip. To me, the higher the bitrate, the ...
midnite's user avatar
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FFMpeg: convert any file (video/audio) to custom bitrate and dynamic range

So, in my specific case, I have a couple of FLAC files that are approximately 1500kb/s, and they are 24-bit. I want to convert them to 16-bit, and to make them around 500kb/s I didn't find any info ...
Andy3153's user avatar
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0 answers
8k views

Cannot change default audio format (Windows 11)

Microsoft Surface Book 3, 13.5″, Windows 11 Pro. The default sound output device won’t let me change the sample rate and bit depth. The corresponding Control Panel menu is grayed out with 16 bit, ...
yll38419's user avatar
0 votes
1 answer
381 views

Windows 10 Groove music default app can't show songs bitrate?

I opened some mp3s on Windows 10 and Groove Music is launched as default app to reproduce them... Well, I was looking to have songs bitrate shown in current playlist (together with song title, ...
danicotra's user avatar
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1 vote
1 answer
945 views

Audio - format and bitrate effect on quality

I have been interested in audio and improving its quality for a while now and after researching for a while I found out how difficult it can get when you find the answer to a question and then find a ...
Ali Hamza Khan's user avatar
2 votes
0 answers
393 views

Why has bitrate changed after remuxing with ffmpeg?

I am running this command to remux a .VOB file into a .mov file, without re-encoding. ffmpeg -i input.VOB -c copy output.mov The details of the movies' codec, framerate and bitrate in QuickTime's ...
Rachel's user avatar
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1 vote
1 answer
688 views

ffmpeg - Variable CRF based on Bitare

I use ffmpeg to encode some videos I downloaded from various streaming sites to HEVC. In windows I use a batch file to convert all these files in a directory. ffmpeg -n -i input.mp4 -c:v libx265 -crf ...
Metallizer's user avatar
2 votes
1 answer
1k views

ffmpeg - Skip file if the bitrate is lower than certain amount

I use ffmpeg to encode some videos I downloaded from various streaming sites to hevc. In windows I use a batch file to convert these files. FOR /F "tokens=*" %%G IN ('dir /b *.mp4') DO ...
Metallizer's user avatar
1 vote
0 answers
490 views

How do I mass-modify the bit rate of WAV files?

I have about 200-250 WAV files that I need to work with in Unreal Editor for a game mod. The editor wouldn't accept WAV files with a bit rate higher than 768 kbps. Annoyingly, the WAV files are mostly ...
Anindito Wibisono's user avatar
2 votes
3 answers
4k views

In Windows, how do I list the extended attributes — or metadata — for an MP3 file?

I have multiple folders with MP3 files. Some files are duplicates but in separate folders. I want to create printable list of extended attributes — or metadata — to retain the file with the highest ...
Paul's user avatar
  • 21
1 vote
1 answer
1k views

What is my computer's audio card's DAC bit resolution?

I know that every sound card converts digital data to analog sound using a DAC chip. This chip's quality greatly determines the sound quality. Is there a way to query parameters such as bit ...
Doron Behar's user avatar
0 votes
1 answer
1k views

DDR4-2933 data transfer rate

DDR4-2933 functionates at 2933 MHz How do I find peak data transfert rate in GB/s from there ? Is it vendor/capacity dependent ? Is there a universal conversion approach ? It should be something ...
kiriloff's user avatar
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0 votes
0 answers
1k views

Faster decoding with FFmpeg

I am using ffmpeg for live stream processing. Basically, I compiled ffmpeg myself. Unfortunately, I notice that when the bitrate gets a bit high (> 15mbps H264), the decoding can not keep up with the ...
Tina J's user avatar
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1 vote
1 answer
1k views

ffmpeg (libmp3lame) doesn't compress to correct bitrate - just Audio

I have some uncompressed WAV files that I wan't to compress to a CBR of 8kb/s - which the documentation says is possible by using -b:a 8k in the ffmpeg command. however when I run it on my raw audio ...
Becky Heath's user avatar
1 vote
3 answers
9k views

What is the difference between bandwidth and bit rate?

I have seen two definitions for bandwidth: "For a transmission medium, the range of signal frequencies it may transmit" and "The maximum amount of data that can be transmitted in a ...
Sam's user avatar
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1 vote
0 answers
1k views

FFMPEG Constant Bitrate Transcoding

I have been playing around with FFMPEG and I am trying to achieve a streaming bitrate that is as constant as possible. I have gone through the FFMPEG documentation and examples, but when I measure the ...
Daniel Reyes Duram's user avatar
2 votes
2 answers
4k views

MediaInfo's 'Overall bit rate' vs 'Maximum Overall bit rate'

I'm comparing duplicate media files using MediaInfo, so that I can keep the one with the best quality and delete the other one. However, I'm confused by some of the information. One Duplicate ...
oldboy's user avatar
  • 393
1 vote
1 answer
100 views

Is it possible for a video segment to be encoded at a higher bitrate than the video segment in the source file?

I am currently experimenting with video compression on Handbrake and I would like to know if suppose a video segment in the source file is around 11000 kb/s, is it possible for it to be somehow ...
Primus's user avatar
  • 15
0 votes
2 answers
1k views

Why does converting a m4a/wma to wav result in a ridiculously high bitrate file?

If I use the simple command ffmpeg -i file.m4a file.wav, the resulting file invariably seems to have a bitrate of around 750kbit/s (resulting in a 500mb file from a 100mb one my case). I've already ...
Mattwmaster58's user avatar
1 vote
0 answers
480 views

Bitrate data on RTMP stream

When I check the RTMP stream with ffprobe and rtmpdump, Some streams are show the audio and video bitrate data. But some others not. What cause this happen? And, I'm using the wowza as the origin ...
Andrei Kim's user avatar
0 votes
3 answers
18k views

x264: which -tune for best live streaming quality without increased bitrate?

I am trying to stream an FPS shooter game from OBS 20.0.1 at the lowest bitrate possible whilst maintaining the best quality possible (i.e. less blocky pixels). I am concerned that more reference-...
Trr1ppy's user avatar
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0 votes
0 answers
4k views

How to change audio bitrate to exactly 85 Kbps and preserve video setting?

When I try to change the audio bitrate for my video, also my video output is lower than it should be. Also my output video should be in MOV format. I tried: ./ffmpeg -i myvideo.mov.mp4 -b:a 85k ...
shanji97's user avatar
  • 101
0 votes
1 answer
817 views

Ffmpeg change bitrate of .mp2 file [duplicate]

How can I change the bitrate of an .mp2 file usin ffmpeg. So far I tried following: ffmpeg -i myAudio.mp2 -minrate 160k -maxrate 160k -bufsize 160k myAudioNew.mp2 It creates me an Audio but if I go ...
utdev's user avatar
  • 229
1 vote
1 answer
312 views

Is it possible to sort all my songs collection (in iTunes) by bitrate?

The reason I want to do this is that I would like to change the bitrate of all of my songs superior to 192 kbps, so I get more storage in my iPod classic. My library has been gathered for years now ...
Víctor Samaniego's user avatar
0 votes
2 answers
2k views

converting to the same format many times - how much quality will I lose?

Almost a decade ago, I converted all my mp3 files higher than CBR 192 kbps to exactly CBR 192 kbps. This is because I can no longer here any difference between CBR 192 and CBR 320 (using and ABX test),...
lightning_missile's user avatar
29 votes
2 answers
50k views

Determine video bitrate using ffmpeg

I am trying to determine video bitrate(For transcoding) using ffmpeg command,I tried following command. ffmpeg -i 28572615.wmv and it produces the following output Input #0, asf, from '28572615....
user2528012's user avatar
3 votes
1 answer
967 views

Why ffmpeg changes bitrate of mp3 when speeding it up?

I speeded up (1.2x) an mp3 file using these instructions, but its real bitrate changed from 192 kbps (19 kHz cut-off) to 128 kbps (16 kHz cut-off). Why? Is it right? Or do I need to add any extra ...
aleskva's user avatar
  • 123
1 vote
1 answer
3k views

What are the factors that affects a video's quality?

I am new to this website and this is my first question, really appreciate if someone can provide some advice about my current problem. I've been testing some videos on my computer to see at what ...
Odaiba's user avatar
  • 11
0 votes
2 answers
1k views

My videoplayer is suddenly buffering local videos

Today I was watching Band of Brothers which I have stored locally on my hard drive in 720p. Watching the first two episodes went perfectly as usual, however when viewing the third episode my Kodi ...
Héctor van den Boorn's user avatar
1 vote
1 answer
3k views

Resize in FFmpeg

I have a video which has a resolution of 1920x1080p. I want to re-encode this video (with libx264 for video and aac for audio); Downscale it first to 1280x720p (with the same aspect ratio) while ...
KLNy's user avatar
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1 vote
1 answer
1k views

Bitrate-MediaInfo [closed]

What is the BitRate_Maximum/String (for video and audio) which I've been seeing on MediaInfo (What does "String" means here?) ? Thank you for your time!
KLNy's user avatar
  • 33
0 votes
1 answer
351 views

Full-SBS 3D movie bitrate when ripping

When ripping movies from iso to full side by side format, 3840x1080 usually (1920x1080 each eye). Shouldn't the bitrate double? I've always wondered that, what do you think?
Giancarlo's user avatar
  • 223
0 votes
1 answer
304 views

Is there a way to determine resolution of a video using its bitrate?

I have a use case where I need to determine the resolution of a video depending on its bit rate data e.g. 236k, 668k, 1299k, 1900k etc. I also have data about its dimensions e.g. 320x240, 480x360 etc....
Praveen Kumar's user avatar
0 votes
1 answer
3k views

When doing 2 pass video encoding with FFmpeg, how to find the optimal bitrate?

When doing 2 pass video encoding with VP8 (libvpx), is there a way to figure out the optimal bitrate, so I don't have to guess? Something like a small compression test, or some ffmpeg command, that ...
ClearSky's user avatar
0 votes
1 answer
972 views

Are there any benefits to buying high write speed Blu-ray disks?

There are many different type of blu ray disc out there, the hestitation to buy was started from read/write speed of a blu ray disc. I'm looking for Verbatim/Memorex/Sony disc, the most common read ...
Happy Face's user avatar
13 votes
2 answers
34k views

Reducing bitrate with ffmpeg using `-b:v 500k` doesn't actually reduce bitrate to 500k

I am trying to create several downgraded versions of a video file with ffmpeg. I am using the following command via the command line (the command is taken from the documentation): ffmpeg -i ../../tos....
nburk's user avatar
  • 253
0 votes
1 answer
3k views

Re-encode AC3 5.1 audio with variable bitrate using FFmpeg

Does the AC3 audio format support variable bitrate encoding? If so, is it possible to use FFmpeg's -vbr option to achieve that? I'd like to avoid converting from 5.1 to a 2-channel stereo because I'...
GetFree's user avatar
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19 votes
1 answer
51k views

How to consider bitrate, -maxrate and -bufsize of a video for web

I am using ffmpeg to encode my videos to upload them on the web. I saw this post about using ffmpeg, but didn't quite get as to how to consider the values. Suppose I have a video of size 70 MB with a ...
Robin's user avatar
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0 votes
1 answer
1k views

Does image quality deteriorate in video if rendered with higher bitrate?

Let's say I want to render a music video with a still image on it (1920x1080) resolution, and I know if I were to decrease video bitrate, the image quality would deteriorate, how about if I would ...
Giancarlo's user avatar
  • 223